124 AUSTRALIAN FUNGI, 



74. Leptostroma acaci.e, n.sp. 



Perithecia clustered on pale indefinite spots, black, elongated 

 or irregularly subcircular, at first covered by the epidermis, then 

 erumpent, opening b}'^ longitudinal fissure, sometimes reaching a 

 length of nearly 1 mm. Sporules hyaline, lanceolate, generally 

 straight, often thicker at one end than the other, 22-30 x 5-6/^. 



Dimboola, Yic; on phyllodes and branches of Acacia saliciiia, 

 Lindl.; July, 1896 (Reader). 



The black clusters of perithecia stand out prominently from 

 the pale green of the phyllodes, and the species is a characteristic 

 one. 



75. Myriangium acaci.e, n.sp. ^ 



Stromata in clusters, up to 4 mm. across, tubercular, scattered, 

 superficial, firmly attached to bark by submembranaceous base; 

 each stroma 1-IJ mm. diam., black, disciform, plane or convex 

 above, orbicular or angular from pressure, horn}^ in texture, 

 pseudo-parenchymatous. Ascigerous cells or perithecia numerous, 

 subpolystichous, subglobose, each containing a single ascus. Asci 

 subglobose to obovate, 8-spored, aparaphysate, 40-50 x 32-38 ix. 

 Sporidia conglobate, hyaline, oblong-elliptical, often curved, 

 transversely 7-8 septate and slightly constricted at some of the 

 septa, imperfectly muriform, 30-38 x il-13/M, occasionally reaching 

 a length of 42/a. 



Plenty River, Vic; on living branches of Acacia deaJbata, Link; 

 August, 1903 (C. French, Jr.). 



This species approaches J/, duricei, Mont, k Berk., but the 

 spores are rather larger. 



76. Myriangium pritzelianum, Henn. (Hedw. xL, 353, 1901.) 



Stromata densely gregarious, sometimes scattered, on branches, 

 leaves and flowers, erumpent and becoming superficial, pulvinate, 

 rough to warty, or somewhat furrowed, rather flesh}^, black to 

 dark cinnamon, 0-2-0-5 mm. diam., ruddy-brown or deep blood-red 

 by transmitted light, pseudo-parenchymatous. Ascigerous cells or 

 perithecia numerous, subpolystichous. Asci ovoid, obovate or 



